Espresso coffee machine



FIG. 1 is a front perspective view of an espresso coffee machine showing my new design;

FIG. 2 is a left side perspective view thereof;

FIG. 3 is a right side perspective view thereof;

FIG. 4 is a rear perspective view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a front left side perspective. 

The ornamental design for an espresso coffee machine, as shown and described. 